ICC-based colorspaces

If you have an ICC profile for your colorspace, then you can call one of these functions:

$\begin{lstlisting} fz_colorspace *fz_new_icc_colorspace( fz_context *ctx, cons... ...m_stream( fz_context *ctx, const char *name, fz_stream *in); \end{lstlisting}$

They all load the ICC profile from the specified source, and create the ICC based fz_colorspace.

Unfortunately, in non-ICC based workflows, ICC profiles can't be loaded. This means that document handlers have to be prepared to `fall back' to a non-ICC based approximation. This has to be done at the document handler level; for example the PDF agent calls fz_get_cmm_engine, and if it returns NULL, drops back to the alternate specified space.